*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:linear-gradient(135deg,#0f172a,#1e293b);
    padding:20px;
}

.container{
    max-width:700px;
    width:100%;
    background:#fff;
    padding:50px;
    border-radius:20px;
    text-align:center;
    box-shadow:0 20px 50px rgba(0,0,0,0.25);
}

.warning-icon{
    width:100px;
    height:100px;
    margin:0 auto 25px;
    border-radius:50%;
    background:#fee2e2;
    color:#dc2626;
    font-size:60px;
    display:flex;
    align-items:center;
    justify-content:center;
}

h1{
    color:#b91c1c;
    font-size:42px;
    margin-bottom:20px;
    font-weight:700;
}

.message{
    font-size:20px;
    color:#334155;
    line-height:1.7;
    margin-bottom:20px;
}

.details{
    color:#64748b;
    font-size:16px;
    line-height:1.8;
    margin-bottom:30px;
}

.notice-box{
    background:#fef2f2;
    border-left:5px solid #dc2626;
    padding:20px;
    border-radius:10px;
    color:#7f1d1d;
    margin-bottom:30px;
    text-align:left;
}

.btn{
    display:inline-block;
    padding:15px 35px;
    background:#dc2626;
    color:#fff;
    text-decoration:none;
    border-radius:8px;
    font-weight:600;
    transition:.3s;
}

.btn:hover{
    background:#b91c1c;
    transform:translateY(-2px);
}

@media(max-width:768px){
    .container{
        padding:35px 25px;
    }

    h1{
        font-size:32px;
    }

    .message{
        font-size:18px;
    }
}